Finding the Fourth Proportional to 2,066.50, 2,849.47 and 1,320.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.50 : 2,849.47 = 1,320.49 : x
2. Step 2: Convert to fraction form
   2,066.50/2,849.47 = 1,320.49/x
3. Step 3: Cross multiply
   2,066.50x = 2,849.47 × 1,320.49
4. Step 4: Simplify right side
   2,066.50x = 3,762,696.64
5. Step 5: Solve for x
   x = 3,762,696.64/2,066.50
6. Step 6: Final answer
   x = 1,820.81